/* eslint-disable */
/*
 * Simple JavaScript Inheritance
 * By John Resig http://ejohn.org/
 * MIT Licensed.
 *
 ******************************************************
 * Example Usage
 ******************************************************
 var Person = Class.extend({
  init: function(isDancing){
    this.dancing = isDancing;
  },
  dance: function(){
    return this.dancing;
  }
});

var Ninja = Person.extend({
  init: function(){
    this._super( false );
  },
  dance: function(){
    // Call the inherited version of dance()
    return this._super();
  },
  swingSword: function(){
    return true;
  }
});

var p = new Person(true);
p.dance(); // => true

var n = new Ninja();
n.dance(); // => false
n.swingSword(); // => true

// Should all be true
p instanceof Person && p instanceof Class &&
n instanceof Ninja && n instanceof Person && n instanceof Class

 ******************************************************
 */

// Inspired by base2 and Prototype
(function() {
  var fnTest = /xyz/.test(function() {
    xyz;
  }) ? /\b_super\b/ : /.*/;

  // The base Class implementation (does nothing)
  this.Class = function() {
  };

  // Create a new Class that inherits from this class
  Class.extend = function(prop) {
    var _super = this.prototype;

    // Instantiate a base class (but only create the instance,
    // don't run the init constructor)
    initializing = true;
    var prototype = new this();
    initializing = false;

    // Copy the properties over onto the new prototype
    for ( var name in prop) {
      // Check if we're overwriting an existing function
      prototype[name] = typeof prop[name] == "function" && typeof _super[name] == "function" && fnTest.test(prop[name]) ? (function(name, fn) {
        return function() {
          var tmp = this._super;

          // Add a new ._super() method that is the same method
          // but on the super-class
          this._super = _super[name];

          // The method only need to be bound temporarily, so we
          // remove it when we're done executing
          var ret = fn.apply(this, arguments);
          this._super = tmp;

          return ret;
        };
      })(name, prop[name]) : prop[name];
    }

    // The dummy class constructor
    function Class() {
      // All construction is actually done in the init method
      if (!initializing && this.init)
        this.init.apply(this, arguments);
    }

    // Populate our constructed prototype object
    Class.prototype = prototype;

    // Enforce the constructor to be what we expect
    Class.prototype.constructor = Class;

    // And make this class extendable
    Class.extend = arguments.callee;

    // EXTENSION BY Draw2D.org to inject methods into an existing class to
    // provide plugins or
    // bugfixes for further releases
    //
    Class.inject = function(prop) {
      var proto = this.prototype;
      var parent = {};
      for ( var name in prop) {
        if (typeof (prop[name]) == "function" && typeof (proto[name]) == "function" && fnTest.test(prop[name])) {
          parent[name] = proto[name];
          proto[name] = (function(name, fn) {
            return function() {
              var tmp = this.parent;
              this.parent = parent[name];
              var ret = fn.apply(this, arguments);
              this.parent = tmp;
              return ret;
            };
          })(name, prop[name]);
        } else {
          proto[name] = prop[name];
        }
      }
    };

    return Class;
  };
})();